Vectors and Matrices are created as instances of a numpy array. We can think of a 1D NumPy array as a list of numbers (or row- vector), and a 2D number array as a matrix.

Programming languages: C++ overtakes PHP, but JavaScript, Python and Java still rule While the most used programming languages remain stable, there's quite a lot of change elsewhere.

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...